package api;

import cn.hutool.json.JSONUtil;
import model.UserInfo;
import util.ResultUtils;
import util.SessionUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 得到当前登录用户的信息
 */
@WebServlet("/loginUserInfo")
public class LoginUserInfoServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String msg = "未知错误！";
        UserInfo userInfo = SessionUtils.getLoginUser(req);
        if (userInfo != null) {
            // 当前用户已登录
            userInfo.setPassword(""); // 去除掉返回信息中的密码数据
        } else {
            msg = "未登录！";
        }
        // 3.将用户返回给前端
        resp.setContentType("application/json; charset=utf-8");
        resp.getWriter().println(JSONUtil.toJsonStr(ResultUtils.toResult(
                200, userInfo, msg)));
    }
}
